Side Effects of Dutasteride for Hair Growth

Common and Hormonal Side Effects

Patients using dutasteride for hair growth should be aware of sexual side effects including erectile dysfunction, decreased libido, and ejaculation disorders, which occur in approximately 2-4% more patients compared to placebo 1
Breast-related side effects, such as gynecomastia and breast tenderness, occur in approximately 2.3% of patients compared to 0.74% on placebo 2
Reduction in PSA levels by approximately 50% after 12 months of therapy, which must be considered when interpreting PSA results for prostate cancer screening 1

The American Urological Association recommends considering the effect of dutasteride on PSA values when interpreting PSA results for prostate cancer screening, as dutasteride lowers PSA values by approximately 50% after 12 months 1